40mm Piston Kit for 50cc 2-Stroke Air-Cooled Minarelli Based Engines SPECIFICATIONS: 40mm Piston Rings 12mm Wrist Pin Circlips COMPATIBILITY: CPI – Aragon GP 50 2T, Hussar 50 2T >’03, Oliver 50 2T >’03, Popcorn 50 2T >’03 Explorer – Cracker 50 2T Diamo – Velocity 50 2T E-ton – Beamer 50 2T, Matrix 50 2T Flyscooter – Hero 50 2T Gorilla Motor Works – Cobra 50 2T, Phantom 50 2T Keeway – F-ACT 50 2T, Matrix 50 2T, Hurricane (Euro) 50 2T, Flash 50 2T, Focus 50 2T, Hacker 50 2T, Goccia 50 2T, Arn 50 2T Malaguti – F12 Phantom R 50 2T >’07 Qlink – Hawk 50 2T, Rave 50 2T, Star 50 2T TNG – LS 50 2T, SS 50 2T Vento – Triton 50 2T, Zip 50 2T This 40mm piston kit will fit most 50cc 2-stroke Chinese Yamaha cloned scooters that uses the 1PE40QMB engines. **Please make sure if your scooter uses a 12mm and not the 10mm wrist pin before placing an order.